Question

jquery怎么将类数组对象转换为数组？

Answer 1

程序代码如下：

<script type="text/javascript"> 

function test(){ 

alert(arguments) 

arguments = Array.prototype.slice.call(arguments); 

alert(arguments instanceof Array); 

alert(arguments) 

} 

test(1,2,3,4); 

//※※※※※※※※※※※测试2※※※※※※※※※※※※※※ 

var htmlcollection = document.getElementsByTagName("h3"); 

alert(htmlcollection) 

try{ 

htmlcollection = Array.prototype.slice.call(htmlcollection); 

alert(htmlcollection instanceof Array); 

alert(htmlcollection); 

}catch(e){ 

alert(e) 

} 

//※※※※※※※※※※※测试3※※※※※※※※※※※※※※ 

var sheets = document.styleSheets; 

alert(sheets) 

try{ 

sheets = Array.prototype.slice.call(sheets); 

alert(sheets instanceof Array); 

alert(sheets); 

}catch(e){ 

alert(e) 

} 

alert(arrayLike) 

arrayLike = Array.prototype.slice.call(arrayLike); 

alert(arrayLike instanceof Array); 

alert(arrayLike); 

</script>